esp_wifi_set_bandwidth() function

Set the bandwidth of specified interface @attention 1. WIFI_BW_HT40 is supported only when the interface support 11N @attention 2. When the interface supports 11AX/11AC, it only supports setting WIFI_BW_HT20. @attention 3. Can not set WiFi bandwidth under band mode 2.4G + 5G (WIFI_BAND_MODE_AUTO), you can use esp_wifi_set_bandwidths instead @attention 4. API return ESP_ERR_NOT_SUPPORTED if the band mode is set to 2.4G + 5G (WIFI_BAND_MODE_AUTO)

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Declaration

from esp_wifi.h:740

esp_err_t esp_wifi_set_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t bw);

Arguments

Argument

Description

ifx

interface to be configured

bandwidth

Return value

- ESP_OK: succeed - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init - ESP_ERR_WIFI_IF: invalid interface - ESP_ERR_INVALID_ARG: invalid argument - ESP_ERR_NOT_SUPPORTED: This API is not supported when the band mode is set to 2.4G + 5G (WIFI_BAND_MODE_AUTO) - others: refer to error codes in esp_err.h

Examples

esp_wifi_set_bandwidth() is referenced by 3 libraries and example projects:

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esp_wifi_set_bandwidth() function

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Arguments

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